Event system
============

- Added new events for image aliases removal
- 5.4.6 Added new events for state assigments

New events
----------

image/invalidateAliases
image/removeAliases ( $originalAliasURI )
image/purgeAliases ( $originalAliasURI )
image/trashAliases ( $originalAliasURI )


content/state/assign ( $objectID, $selectedStateIDList )
